I got tired of trying to moving around my breadboard and Uno projects with 2 hands. So i saw some where someone made a caddy for the two. I added another pocket for a small board. The small board is usually a board I use with my bread boarding of a project that it contains switches and or lights. This is a flat version but I also made a version where the Uno and the accessory board is mounted on a slant.
The author marked this model as their own original creation.